a. (verb) to flail one's distal appendages in a spastic display of frustration and helplessness. frequently occurs after one has imbibed large amounts of liquor, wine, or malt beverages
b. (noun) male ejaculate. typically spoken along the East Coast
c. as a past participle (semaked): confers an state of extreme inebriation and loss of logical/spatial abilities

a. Stop semaking, you might knock over my aquarium.
b. I had to wash my comforter this morning; it was covered in semak.
c. You could tell that he had gotten semaked by the way he crashed into the wall and began to vomit.